Open AccessThe Effect of NaOH Immersion Time to Physical Properties of Purun Tikus (Eleocharis dulcis) Cement Board Composite
Author(s) -
Ninis Hadi Haryanti,
Henry Wardhana,
. Suryajaya
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/599/1/012013
Subject(s) - water content , composite number , immersion (mathematics) , cement , composite material , chemistry , materials science , geology , geotechnical engineering , mathematics , pure mathematics
A research in cement board composite made from purun tikus (Eleocharis dulcis) has been conducted. The aims are to determine its physical properties as variations of purun tikus fibers mass and NaOH immersion time. The results were yielded 5.00 - 15.15%, 0.52 - 0.76 g / cm3 and 0.05 - 0.18%, respectively for water content, density and thickness development. For moisture content and density values, the results were not met the standard of SNI 03-2104-1991, while for thickness development of all samples met the standards. The results showed fluctuating changes in water content, density and thickness development, which were influenced by the immersion time and mass of purun tikus fibers. From the results, it can be concluded that shorter immersion time and less purun tikus fibers yielded a smaller value of water content and thickness development, while density was become higher.